Nut-cracking machine



J. 0. DREWS.

NUT cRAcKlNG MACHINE.

Patente May 249 M5211.

z snem-sum x.

- J. 0. DREWS.

NUT CRACKING MACHINE.

APPLICATION HLED JuLY-i. 1919.

Patente May 24, 19-211.

2 SHEETS-SHEET 2.

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JULms oscain nanws, or Lennon, nnenartn.

NUT-CRACKING MACHINE.

specification of Letters latent.

Patented May 24, 319210 Application flled July 7, 1919. Serial No.309,044.

To alZ witam zft'may concer'n:

'Be it known that I, J ULIUs OsoAR Dnnws, residin at 62 London Wall, E.C., in the city of ondon, England, have nvented certain new and usefulImprovements in or Relating to Nut Cracking Machines, of which thefollowing is a specification. This invention relates to nut crackingvmachines of the kind set forth in the specification of British LettersPatent'No. 23936 i A. D. 1910, granted to J. O. Drews, in which thetreatment of t he nuts between two jaws inclined to one anotheris'efl'ected by causing the movabl'e jaw to perform the crackingoperation by moving bodily toward the stationary jaw from a positionthat provides a space for the reception and retention of the nutsbetween the jaws, and by then causing the said movable jaw torecedesufliciently to allow the cracked nuts to fall away from betweenthe j aws thus separated, before returning the said jaw to its receivingposition ready for treating' a fresh :supply of nuts.

According to the invention the movable jaw is mounted to slide on guideson the frame of the machine and actuated by a cam or oam adapted toimpartv an accelerated or impulsive movement to the jaw during itsforward moyement for the purpose of eflecting the eraeking of the'shells of the nuts. Sald movable jaw is also provided with means forcontrolling or regulatingthe supply of nutspassing from the feed hopperto the jaws.

n order that the invention may be clea'rly understood and readilycarried into efl'e'ct the same will now be more fully described by theaid of the accompanying drawings in which 2- Figure 1 is a Verticalsection of the nut crackmg machine.

Fig. 2 is an end elevation of Fig. 1.

Fig. V3 is a horizontal section with the ho er. or tray removed.

1 4: is a Vertical section of a machine .modied for the Purpose oftreating larger nuts.

Fig. 5 is a half sectional end elevation of Fr f 3.

ig. 6 is a horizontal section of Fig. 3.

a is the frame, 6', 62 the fixed and movable jaws respeetively and c thehopper or chute from which `the nuts are fed to the jaws 6, 6a.Interposed between the hopper and the jaws are two defleetmg members d,e cen-p turn the member 63 ply.

the movement cr throw Q trolled by the movement of the jaw 6z forReferring to Figs. 1 to 3 a pivoted member 63 is mounted between fixedlu 6* on the jaw 62 which lugs engage with a bifurcated cam f at therear of the jaw. The member 63 f and is engaged during each revolutionof the cam by a pin or stud f' to impart a sudden 'impulse to the jaw,near the .end of its forward stroke. A spring 65 serves toreto itsnormal osition and to allow the stud f' to pass. The jaw 62, after 1tsrelease by the cam f, is returned by Springs g mounted on guide rods a',Figs. 2 and 3, and disposed between lugs 6G on the jaws 62 and lugs azon the frame. While preferring the jaw to be slidablyvmounted on saidguide rods the rods may be adapted to slide in bearings in theframework-of the machine. The jaw 62 is also provided with a projection67 at its upper end which engages with the nut collecting channel orrecelver d mounted beneaththe hopper c, the arrangement being such thatas the cracked nuts fall awayv from the jaws 6' 62 the receiver cl isoperated to furnish a fresh sup- The receiver d pivoted to the frame aat d' is connected by link or links h to the shield or defiector e whichis pivoted to the frame at e' and operated to receive the nuts passingfrom the receiver diprior to their falling between the jaws 6', 62, theoperation being such that mitted to get clear of the jaws prior to theuncracked nuts being fed thereto. The Shield or deflector e which alsoserves to prevent the nuts passing over the top of the fixed jaw 6' isarrested by the bars or stops e' which cause'the deflector e to form 'atl'ough for receiving the nuts. Referring now to Figs. 4 to 6 theprinciple of opera- .tion is the same as in Figs. 1 to 3, but in orderto permit of larger nuts or those having harder shells being cracked thearrangement of the mechanism is slightly varied. Thus the jaw 62 insteadof sliding on guide rods is connected to'rods z', which slide inbearings a of the frame a which rods are acted upon by the levers j,jinterposed between the ends of the rods and the Vcams lt, mounted onthe driving shaft k. The ends of the rods z' are provided with scwedbolts or studs i, i for adjusting the jaw 6G anel projects into the forkof the cam' the nuts shall be per- ,w

revolution.

are slotted to receive the levers j, j. Or, the

ends of the rods z' may be slotted to receive vided with a pin 703 whichextends to each' side of the member 102 to' engage the I'earwardlyextending members Z', Z2 connected together'by the cross-piecev 13 andpivoted at the other extremities tov the movable jaw bz. The operationof the pin k3 on 'the members l', 12 is similar to that ofv the stud f'von the member -b3 in Figs. 1 to 3 in that an impulse is impartedto thejaw 'bz once during each The downward movement of the members Z', 12under the action' of the pin 103 is limited by a stop m fixed ben'eaththe cross-piece 13 while the return of the jaw bz is efl'ected Bythe-'fispprings n, n see Fig. 5. I

The arrangement of nut receiver .and Shield or deflector shown at 0'; o2respectively operated 'and controlled in a' A:admilar manner to thatshown in Figs. 1 to 3.

What I claim a'nd desire to secure by Letters Patent of the UnitedStates is 1. A nut cracking machine, comprising a frame,- an inclinedfeed chute,a,' ,fixedijam a sliding jaw, a pluralty of pivoteddeflectors mounted between the vchute and the j aws for-receiving nutsfrom the chute and deliveringthem between the jaws, and-means carried bsaidfsliding jaw for Operating said defiectors. V f

2. A nut cracking'maohine comprising a frame,.a feed chute, a fixed jaw,a movable jaw,` means for receivin'g lnuts from. thechute and deliveringthem periodi'cally between the jaws, cam mechani'sm for actuating themovable jaw, and means for imp'a'rt;

ing an'impulsive movement to the meta-ble' jaw'consisting of a springcontrolled piirotal member adapted to be operatedduringech revolution ofthe actuatin c'jam mechalis`m JULIUS o CAR D'REWS

